CN213838849U

CN213838849U - Multi-cavity booster pump

Info

Publication number: CN213838849U
Application number: CN202022745873.9U
Authority: CN
Inventors: 周如景
Original assignee: Zhongshan Willpower Motor & Electric Appliance Co ltd
Current assignee: Zhongshan Willpower Motor & Electric Appliance Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-07-30
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses a multi-cavity booster pump, which comprises a pump head body and a pump cover, wherein the pump head body is connected with a connecting seat used for connecting a motor, a source water cavity, a water outlet cavity and a booster cavity are arranged in the pump head body, the connecting seat is connected with the pump head body to form an installation cavity, a compression component used for changing the volume of the booster cavity is arranged in the installation cavity in a matching way, the source water cavity and the water outlet cavity are respectively communicated with a water inlet and a water outlet on an end cover component, the booster cavity is communicated with the water outlet cavity and the source water cavity, two or more through cavities are circumferentially distributed on the transverse axis of the pump head body and are positioned in the pump head body, the water outlet cavity is formed at the intersection of the through cavities, the pump cover, the pressurizing diaphragm and the pump head body are sealed together to form the pressurizing cavity. The utility model provides the high pump water efficiency of booster pump has optimized the inside waterway structure of booster pump.

Description

Multi-cavity booster pump

Technical Field

The utility model relates to a fluid transport technical field, concretely relates to multicavity booster pump.

Background

The booster pump is used as an important device for doing work on fluid in the fluid conveying process, and is widely applied to the existing industrial production and human life.

The existing booster pump is influenced by the inner structure of the booster pump when supplying water, so that the water pumping efficiency of the booster pump is lower.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multicavity booster pump is through increasing the pump water efficiency of a plurality of cavitys cooperation in order to improve the booster pump.

In order to solve the technical problem, the utility model discloses a following scheme:

a multi-cavity booster pump comprises a pump head body and a pump cover, wherein a connecting seat used for connecting a motor is connected to the pump head body, an active water cavity, a water outlet cavity and a boosting cavity are arranged in the pump head body, the connecting seat is connected with the pump head body to form an installation cavity, a compression assembly is installed in the installation cavity in a matching manner, the volume of the boosting cavity is changed by the compression assembly through a boosting diaphragm, the active water cavity and the water outlet cavity are respectively communicated with a water inlet and a water outlet on an end cover assembly, the boosting cavity is communicated with the water outlet cavity and the active water cavity, two or more through cavities are circumferentially distributed on the transverse axis of the pump head body and are positioned in the pump head body, the water outlet cavity is formed at the intersection of the through cavities, the pump cover, the pressurizing diaphragm and the pump head body are sealed together to form the pressurizing cavity.

Compared with the prior art, the existing booster pump has fewer pumping cavities, source water is sucked into the booster cavity under the action of the motor and then is pumped out to the outside from the water outlet end, and the water pumping capacity of the booster pump is limited; when the volume of the pressurizing cavity is reduced, water in the pressurizing cavity is pressed into the water outlet cavity at the convergence position of the through cavities through the one-way assemblies and then flows out through the water outlet. Under the drive of the motor driving the compression assembly, the pressurizing cavities are combined one by one to circulate, and meanwhile, water is sucked and drained through the one-way assemblies in the plurality of through cavities, so that the water pumping efficiency of the pressurizing pump is improved. The inside water route structure of whole booster pump has been optimized in the booster pump structural design in this scheme.

Preferably, the one-way assembly comprises a water inlet baffle, a support frame, a water outlet baffle, a water inlet one-way diaphragm and a water outlet one-way diaphragm, the water inlet baffle is connected with the water inlet one-way diaphragm in a matching way, the water outlet baffle is connected with the water outlet one-way diaphragm in a matching way, the support frame is respectively connected with the water outlet baffle and the water inlet baffle to form the one-way assembly, the one-way assembly is hermetically connected with the inner wall of the through cavity, a water inlet water passing cavity is formed between the water inlet one-way diaphragm and the support frame, a water outlet water passing cavity is formed between the water outlet one-way diaphragm and the support frame, the periphery of the water inlet baffle is tightly pressed and sealed between the pump cover and the pump head body, a first flow passage and a second flow passage which are communicated with the water inlet water passing cavity are respectively arranged on the water inlet baffle and the support frame, the top of the support frame is provided with a water inlet groove which is formed by the pump cover body, the second flow passage is communicated with the water source water cavity formed by the pump head body, the water source through hole, the water inlet one-way diaphragm is positioned on a water path between the first flow passage and the water inlet groove, the top end of the support frame is provided with a water inlet nozzle communicated with the water inlet groove, a water outlet flow passage communicated with the water inlet nozzle and the water outlet water passing cavity is arranged in the support frame body, a third flow passage communicated with the water outlet cavity and the water outlet water passing cavity is arranged on the water outlet baffle plate, and the water outlet one-way diaphragm is positioned on a water path between the third flow passage and the water outlet cavity.

Preferably, the compression assembly comprises a pressurizing diaphragm, a screw rod, a connecting rod sleeve and an eccentric part, the eccentric part is provided with an eccentric hole connected with the output end of the motor, the side wall of the eccentric part is sleeved with a bearing, the bearing is connected with the connecting sleeve rod, the pressurizing diaphragm is positioned in the pressurizing cavity and is circumferentially compressed and sealed between the pump cover and the pump head body, the middle part of the pressurizing diaphragm is provided with a matched pressing piece, the screw rod penetrates through the pressing piece, the pressurizing diaphragm and the connecting rod sleeve from top to bottom to compress and fix the pressurizing diaphragm between the pressing piece and the connecting rod sleeve, and the connecting rod sleeve is sleeved with a sheath for supporting the pressurizing diaphragm.

Preferably, a first sealing ring and a second sealing ring are arranged between the end cover assembly and the pump head body, and the first sealing ring and the second sealing ring are pressed in a groove formed in the pump head body through the end cover assembly. The sealing performance between the end cover assembly and the pump head body is enhanced, and water in the source water cavity and the water outlet cavity is prevented from seeping out from the mounting gap.

Preferably, a sealing gasket is arranged at the joint between the pump cover and the pump head body, and the sealing gasket is tightly pressed in a mounting groove formed by the pump head body through the pump cover. The sealing performance of the whole booster pump equipment is enhanced, and the water in each cavity and each flow channel inside the booster pump equipment is ensured not to seep out from the mounting gap between the pump cover and the pump head body.

Preferably, the baffle circumference of intaking is equipped with the seal groove, and the seal groove endotheca is equipped with the third sealing washer. The sealing device is used for enhancing the sealing performance between the one-way component and the inner wall of the through cavity, and preventing water in the source water cavity from leaking into the water outlet cavity in advance through the mounting gap between the one-way component and the inner wall of the through cavity to influence the normal working performance of the booster pump.

Preferably, a sealing groove is formed in the circumferential direction of the water outlet baffle, and a fourth sealing ring is sleeved in the sealing groove. The sealing device is used for enhancing the sealing performance between the one-way component and the inner wall of the through cavity, and preventing water in the source water cavity from leaking into the water outlet cavity in advance through the mounting gap between the one-way component and the inner wall of the through cavity to influence the normal working performance of the booster pump.

The utility model discloses beneficial effect who has:

1. in the technical scheme, under the driving of the motor driving the compression assembly, the pressurizing cavities are circulated one by one, and simultaneously, water is sucked and drained through the one-way assemblies in the plurality of through cavities, so that the water pumping efficiency of the pressurizing pump is improved. The booster pump structural design in this scheme has optimized the inside water route structure of individual whole booster pump.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the cross-sectional structure a-a of fig. 1.

Reference numerals: the water inlet 01, the end cover assembly 02, the water outlet 03, the second sealing ring 04, the source water cavity 05, the sealing gasket 06, the one-way assembly 07, the pressurizing cavity 08, the pressing piece 09, the screw 10, the pressurizing diaphragm 11, the sheath 12, the pump cover 13, the mounting cavity 14, the connecting seat 15, the connecting rod sleeve 16, the bearing 17, the eccentric hole 18, the eccentric hole 19, the water inlet baffle 20, the first flow passage 21, the water inlet one-way diaphragm 22, the water inlet nozzle 23, the second flow passage 24, the source water through hole 25, the first sealing ring 26, the water outlet cavity 27, the third sealing ring 28, the supporting frame 29, the water outlet water passing cavity 30, the water outlet guide diaphragm 31, the third flow passage 32, the water outlet baffle 33, the fourth sealing ring 34, the water inlet groove 35, the through cavity 36, the pump head body 37 and the water inlet water passing cavity 38.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and the terms are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that, unless otherwise explicitly specified or limited, the terms "disposed," "opened," "mounted," "connected," and "connected" are to be construed broadly, e.g., as either a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

A multi-cavity booster pump comprises a pump head body 37 and a pump cover 13, wherein a connecting seat 15 used for connecting a motor is connected to the pump head body 37, an active water cavity 05, a water outlet cavity 27 and a boosting cavity 08 are arranged in the pump head body 37, the connecting seat 15 is connected with the pump head body 37 to form a mounting cavity 14, a compression assembly is mounted in the mounting cavity 14 in a matching manner, the volume of the boosting cavity 08 is changed by the compression assembly through a boosting diaphragm 11, the source water cavity 05 and the water outlet cavity 27 are respectively communicated with a water inlet 01 and a water outlet 03 on an end cover assembly 02, the boosting cavity 08 is communicated with the water outlet cavity 27 and the source water cavity 05, two or more through cavities 36 which are positioned in the pump head body 37 are circumferentially distributed on the transverse axis of the pump head body 37, the transverse axis is described relative to the structure in figure 1, the transverse axis and the central line of the water outlet cavity 27 are a straight line, and the circumferential direction of the transverse axis can be understood that a plurality of through cavities 36 are distributed in the circumferential direction of the water outlet cavity 27, as shown in fig. 2, a plurality of through cavities 36 are arranged in the radial direction of the water outlet cavity 27, the water outlet cavity 27 is formed at the intersection of the through cavities 36, a one-way component 07 for controlling the connection or disconnection of a water path between the source water cavity 05 and the pressurizing cavity 08 and a water path between the pressurizing cavity 08 and the water outlet cavity 27 is arranged in the through cavity 36, and the pump cover 13, the pressurizing diaphragm 11 and the pump head body 37 are sealed together to form the pressurizing cavity 08.

In this embodiment, as shown in fig. 1 and 2, two or more through cavities 36 are arranged in the circumferential direction of the transverse axis of the pump head body 37, the through cavities 36 are simultaneously communicated with the source water cavity 05, the pressurizing cavity 08 and the water outlet cavity 27, a one-way component 07 is installed in each through cavity 36 in a matching manner, the one-way component 07 only allows water to flow from the source water cavity 05 to the pressurizing cavity 08, the pressurizing cavity 08 to the water outlet cavity 27, the volume of the pressurizing cavity 08 is changed by driving a compression component through a motor, when the volume of the pressurizing cavity 08 located above is increased, water in the source water cavity 05 is sucked into the pressurizing cavity 08 through the one-way component 07 and a related water path, at this time, the volume of the pressurizing cavity 08 located below is reduced, water in the pressurizing cavity 08 is pressed into the water outlet cavity 27 at the convergence position of each through cavity 36 through each one-way component 07, and then flows out through the water outlet 03; and vice versa. Under the drive of the motor driving the compression assembly, the pressurizing cavities 08 are in reciprocating circulation one by one, and water is sucked and drained through the one-way assemblies 07 in the through cavities 36, so that the water pumping efficiency of the pressurizing pump is improved. The booster pump structural design in this scheme has optimized the inside water route structure of individual whole booster pump.

Example 2

Specifically, the one-way assembly 07 comprises a water inlet baffle 20, a support frame 29, a water outlet baffle 33, a water inlet one-way diaphragm 22 and a water outlet one-way diaphragm 31, the water inlet baffle 20 is connected with the water inlet one-way diaphragm 22 in a matching manner, the water outlet baffle 20 is connected with the water outlet one-way diaphragm 31 in a matching manner, the support frame 29 is respectively connected with the water outlet baffle 33 and the water inlet baffle 20 to form the one-way assembly 07, the one-way assembly 07 is hermetically connected with the inner wall of a through cavity 36, a water inlet water passing cavity 38 is formed between the water inlet one-way diaphragm 22 and the support frame 29, a water outlet water passing cavity 30 is formed between the water outlet one-way diaphragm 31 and the support frame 29, the periphery of the water inlet baffle 20 is tightly pressed and sealed between the pump cover 13 and the pump head body 37, the water inlet baffle 20 and the support frame 29 are respectively provided with a first flow passage 21 and a second flow passage 24 communicated with the water inlet water passing cavity 38, the top of the support frame 29 is provided with a water inlet groove 35 formed by the pump cover 13 body, the water inlet groove 35 is communicated with the pressurizing cavity 08, the second flow passage 24 is communicated with the source water cavity 05 through a source water through hole 25 formed by the body of the pump body 37, the water inlet one-way diaphragm 22 is positioned on a water path between the first flow passage 21 and the water inlet groove 35, the top end of the support frame 29 is provided with a water inlet nozzle 23 communicated with the water inlet groove 35, the body of the support frame 29 is internally provided with a water outlet flow passage communicated with the water inlet nozzle 23 and the water outlet water passing cavity 30, the water outlet baffle 33 is provided with a third flow passage 32 communicated with the water outlet cavity 27 and the water outlet water passing cavity 30, and the water outlet one-way diaphragm 31 is positioned on the water path between the third flow passage 32 and the water outlet cavity 27.

The specific working principle of the embodiment is as follows: when the motor does not work, source water in the source water cavity 05 enters the water inlet water passing cavity 38 through the source water through hole 25 and the second runner 24 for temporary storage, when the motor works, the motor drives the compression assembly to change the volume of the pressurizing cavity 08, so that the volume of the pressurizing cavity 08 is increased or reduced, when the volume of the pressurizing cavity 08 is increased, suction is generated in the pressurizing cavity 08, so that the water inlet one-way diaphragm 22 is opened, and water in the water inlet water passing cavity 38 enters the water inlet groove 35 and the pressurizing cavity 08 through the water inlet one-way diaphragm 22 through the second runner 24; when the compressed volume of the pressurizing cavity 08 is reduced, water in the pressurizing cavity 08 is compressed and can only enter the water outlet water passing cavity 30 through the water inlet nozzle 23 and the water outlet flow channel, and further is pressed into the water outlet cavity 27 through the third flow channel 32 and the water outlet one-way diaphragm 31, the pressurizing cavity 08 circulates back and forth one by one, water inlet is started after water outlet, and the continuity of water outlet is guaranteed; through the setting of a plurality of logical chambeies 36 and inside one-way subassembly 07 for the volume of intaking and going out water increases, has improved the pumping efficiency of booster pump. A plurality of logical chamber 36's rational design, the inside waterway structure of booster pump has been optimized, make the structure more reasonable, the one-way diaphragm 22 of intaking can effectively prevent water from 35 refluences source water cavity 05 of intake antrum, make when the pressurized cavity 05 pressurized-water, water can not be pressed out by the one-way diaphragm 22 department of intaking, the one-way diaphragm 31 of play water can effectually prevent to go out the water refluence in the water cavity 27 and go out water cavity 30, when the pressurized cavity 08 absorbs water, can avoid the water in the play water cavity 27 to be inhaled back and go out water cavity 30.

Example 3

Specifically, the compression assembly comprises a pressurizing diaphragm 11, a screw rod 10, a connecting rod sleeve 16 and an eccentric part 19, wherein an eccentric hole 18 connected with the output end of the motor is formed in the eccentric part 19, a bearing 17 is sleeved on the side wall of the eccentric part 19, the bearing 17 is connected with the connecting sleeve rod 16, the pressurizing diaphragm 11 is located in a pressurizing cavity 08 and is circumferentially compressed and sealed between the pump cover 13 and the pump head body 37, the middle part of the pressurizing diaphragm 11 is provided with a matched pressurizing piece 09, the screw rod 10 penetrates through the pressurizing piece 09, the pressurizing diaphragm 11 and the connecting rod sleeve 16 from top to bottom to compress and fix the pressurizing diaphragm 11 between the pressurizing piece 09 and the connecting rod sleeve 16, and a sheath 12 used for supporting the pressurizing diaphragm 11 is sleeved on the connecting rod sleeve 16.

As shown in fig. 1, the operation principle of the compression assembly in this embodiment is as follows: the output end of the motor is connected with the eccentric hole 18 of the eccentric member 09, the motor works to drive the eccentric member 09 to rotate, the eccentric member 09 drives the external bearing 17 to do eccentric motion, the eccentric motion of the bearing 17 drives the connecting rod sleeve 16 to do eccentric motion, the screw 10 fixes the pressurizing diaphragm 11 and the connecting rod sleeve 16 into a whole, the middle part of the pressurizing diaphragm 11 is pressed by the pressing member 09, the sheath 12 plays a role in supporting and pressing the bottom of the pressurizing diaphragm 11, the pressurizing diaphragm 11 is circumferentially pressed and sealed between the pump cover 13 and the pump head body 37, the eccentric motion of the connecting rod sleeve 16 enables the connecting rod sleeve 16 to move up and down, when the connecting rod sleeve 16 moves up, the volume of the pressurizing cavity 08 above is reduced, the volume of the pressurizing cavity 08 below is increased, otherwise, when the connecting rod sleeve 16 moves down, the volume of the pressurizing cavity 08 above is increased, the volume of the pressurizing cavity 08 below is reduced, so that the change of the volume of the pressurizing cavity 08 is realized, thereby realizing the suction and discharge of water.

Example 4

Specifically, a first sealing ring 26 and a second sealing ring 04 are arranged between the end cover component 02 and the pump head body 37, and the first sealing ring 26 and the second sealing ring 04 are pressed tightly in a groove formed by the body of the pump head body 37 through the end cover component 02. The sealing performance between the end cover assembly 02 and the pump head body 37 is enhanced, and water in the source water cavity 05 and the water outlet cavity 27 is prevented from seeping out of the installation gap.

Specifically, a sealing gasket 06 is arranged at a joint between the pump cover 13 and the pump head body 37, and the sealing gasket 06 is pressed tightly in a mounting groove formed by the body of the pump head body 37 through the pump cover 13. The sealing performance of the whole booster pump equipment is enhanced, and the water in each cavity and each flow channel inside the booster pump equipment is ensured not to seep out from the mounting gap between the pump cover 13 and the pump head body 37.

Specifically, the water inlet baffle 20 is circumferentially provided with a sealing groove, and a third sealing ring 28 is sleeved in the sealing groove. The sealing device is used for enhancing the sealing performance between the one-way component 07 and the inner wall of the through cavity 36, and preventing water in the source water cavity 05 from leaking into the water outlet cavity in advance through the mounting gap between the one-way component 07 and the inner wall of the through cavity 36 to influence the normal working performance of the booster pump.

Specifically, go out water baffle 33 circumference and be equipped with the seal groove, the seal groove endotheca is equipped with fourth sealing washer 34. The sealing device is used for enhancing the sealing performance between the one-way component 07 and the inner wall of the through cavity 36, and preventing water in the source water cavity 05 from leaking into the water outlet cavity in advance through the mounting gap between the one-way component 07 and the inner wall of the through cavity 36 to influence the normal working performance of the booster pump.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and the technical essence of the present invention is that within the spirit and principle of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments are all within the protection scope of the technical solution of the present invention.

Claims

1. A multi-cavity booster pump comprises a pump head body (37) and a pump cover (13), wherein a connecting seat (15) used for being connected with a motor is connected onto the pump head body (37), an active water cavity (05), a water outlet cavity (27) and a boosting cavity (08) are arranged in the pump head body (37), the connecting seat (15) is connected with the pump head body (37) to form a mounting cavity (14), a compression assembly is mounted in the mounting cavity (14) in a matching manner, the volume of the boosting cavity (08) is changed by the compression assembly through a boosting diaphragm (11), the boosting source water cavity (05) and the water outlet cavity (27) are respectively communicated with a water inlet (01) and a water outlet (03) on an end cover assembly (02), and the boosting cavity (08) is communicated with the water outlet cavity (27) and the source water cavity (05), and is characterized in that two or more through cavities (36) which are arranged in the pump head body (37) are circumferentially distributed on the transverse axis of the pump head body (37), the water outlet cavity (27) is formed at the intersection of the plurality of through cavities (36), a one-way assembly (07) used for controlling the connection or the blocking of a water path between the source water cavity (05) and the pressurizing cavity (08) and a water path between the pressurizing cavity (08) and the water outlet cavity (27) is arranged in each through cavity (36), and the pump cover (13), the pressurizing diaphragm (11) and the pump head body (37) are sealed together to form the pressurizing cavity (08).

2. The multi-cavity booster pump according to claim 1, wherein the one-way assembly (07) comprises a water inlet baffle (20), a support frame (29), a water outlet baffle (33), a water inlet one-way diaphragm (22) and a water outlet one-way diaphragm (31), the water inlet baffle (20) is connected with the water inlet one-way diaphragm (22) in a matching manner, the water outlet baffle (33) is connected with the water outlet one-way diaphragm (31), the support frame (29) is respectively connected with the water outlet baffle (33) and the water inlet baffle (20) to form the one-way assembly (07), the one-way assembly (07) is hermetically connected with the inner wall of the through cavity (36), a water inlet water passing cavity (38) is formed between the water inlet one-way diaphragm (22) and the support frame (29), a water outlet water passing cavity (30) is formed between the water outlet one-way diaphragm (31) and the support frame (29), the periphery of the water inlet baffle (20) is tightly pressed and sealed between the pump cover (13) and the pump head body (37), the water inlet baffle (20) and the support frame (29) are respectively provided with a first flow channel (21) and a second flow channel (24) which are communicated with a water inlet water passing cavity (38), the top of the support frame (29) is provided with a water inlet groove (35) formed by a pump cover (13) body, the water inlet groove (35) is communicated with a pressurizing cavity (08), the second flow channel (24) forms a source water through hole (25) through a pump head body (37) body and is communicated with a source water cavity (05), the water inlet one-way diaphragm (22) is positioned on a water path between the first flow channel (21) and the water inlet groove (35), the top end of the support frame (29) is provided with a water inlet nozzle (23) communicated with the water inlet groove (35), the support frame (29) is internally provided with a water outlet flow channel communicated with the water inlet nozzle (23) and the water outlet water passing cavity (30), the water outlet baffle (33) is provided with a third flow channel (32) communicated with the water outlet cavity (27) and the water passing cavity (30), and the water outlet one-way diaphragm (31) is positioned on the water path between the third flow channel (32) and the water outlet cavity (27).

3. A multi-chamber booster pump according to claim 1, wherein the compression assembly comprises a booster diaphragm (11), a screw (10), a connecting rod casing (16), eccentric member (19), be equipped with eccentric orfice (18) of being connected with the motor output on eccentric member (19), bearing (17) have been cup jointed to eccentric member (19) lateral wall, bearing (17) are connected with connecting rod cover (16), pressure boost diaphragm (11) are located pressure boost chamber (08) and circumference compresses tightly and seals between pump cover (13) and pump head body (37), pressure boost diaphragm (11) middle part is through casting die (09) that is equipped with the matching, casting die (09) are passed from top to bottom in screw rod (10), pressure boost diaphragm (11), connecting rod cover (16) compress tightly pressure boost diaphragm (11) and are fixed in between casting die (09) and connecting rod cover (16), the cover is equipped with sheath (12) that are used for supporting pressure boost diaphragm (11) on connecting rod cover (16).

4. A multi-chamber booster pump according to claim 1, wherein a first sealing ring (26) and a second sealing ring (04) are arranged between the end cover assembly (02) and the pump head body (37), and the first sealing ring (26) and the second sealing ring (04) are pressed in grooves formed in the body of the pump head body (37) through the end cover assembly (02).

5. The multi-cavity booster pump according to claim 1, wherein a sealing gasket (06) is arranged at a joint between the pump cover (13) and the pump head body (37), and the sealing gasket (06) is pressed in a mounting groove formed by the pump head body (37) through the pump cover (13).

6. The multi-cavity booster pump according to claim 2, wherein the water inlet baffle (20) is circumferentially provided with a sealing groove, and a third sealing ring (28) is sleeved in the sealing groove.

7. The multi-cavity booster pump according to claim 2, wherein the water outlet baffle (33) is circumferentially provided with a sealing groove, and a fourth sealing ring (34) is sleeved in the sealing groove.